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| Customization: | Available |
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| Type: | Ring |
| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
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HASTELLOY B-2 Nickel Alloy Ring is a nickel-molybdenum alloy designed for excellent resistance to hydrochloric acid in all concentrations and temperatures. It offers superior corrosion resistance in reducing environments and is highly resistant to stress corrosion cracking and pitting.
This alloy is widely used in chemical processing, petrochemical equipment, heat exchangers, reactors, and evaporators, especially where pure or contaminated hydrochloric acid is present.
Key Features:
Excellent resistance to hydrochloric acid and other strong reducing agents
High mechanical strength and good ductility
Superior resistance to stress corrosion cracking
Good formability and weldability
Suitable for applications involving strong acids
Typical Applications:
Chemical process industry (reactors, evaporators, pipelines)
Heat exchangers and condensers
Pickling equipment and acid production plants
Pollution control and marine engineering
Equivalent Grades:
| Standard | Grade |
|---|---|
| UNS | N10665 |
| W.Nr. | 2.4617 |
| ASTM | B333 / B335 / B366 |
Chemical Composition (Typical, %):
| Element | Ni | Mo | Fe | Cr | C | Mn | Si | Co |
|---|---|---|---|---|---|---|---|---|
| Content | Balance | 26-30 | ≤2 | ≤1 | ≤0.02 | ≤1 | ≤0.1 | ≤1 |





Q1: What is the main difference between Hastelloy B-2 and Hastelloy C-276?
A1: Hastelloy B-2 is optimized for reducing environments such as hydrochloric acid, while C-276 is designed for oxidizing and mixed environments like sulfuri .
Q2: Can Hastelloy B-2 be used in oxidizing acids or ferric chloride environments?
A2: Not recommended. Hastelloy B-2 can suffer rapid corrosion in oxidizing environments. It performs best in pure reducing conditions.
Q3: What is the typical working temperature range?
A3: Hastelloy B-2 performs well from ambient to around 800°C (1470°F), depending on service conditions.
Q4: Do you provide customized sizes or machining service for rings?
A4: Yes. We offer custom cutting, CNC machining, and heat treatment according to your drawings or dimensional requirements.
Q5: What inspection or certificates are available?
A5: Each batch can be supplied with EN 10204 3.1 / 3.2 certificate, including chemical composition, mechanical properties, and NDT test results.
Q6: What packaging and delivery terms do you provide?
A6: Standard export seaworthy packaging with plastic film and wooden cases. Delivery time depends on stock-usually within 7-15 days for standard sizes.
Q7: What is the delivery time?
A7: Usually 7-15 working days for stock materials, and 20-30 days for custom-machined or special-size rings.
Q8: Do you offer price discounts for large quantities?
A8: Yes. We provide big price discounts for bulk orders or long-term cooperation projects. Please contact us for a detailed quotation.
You can contact us through the following methods
Online support: Visit our website for live chat
Address: 300 Meters North of Liaoniu Road and Xindong Ring Road, Liaocheng High-Tech Zone, Liaocheng, Shandong, China
We look forward to providing you with high-quality products and services!
If you have any other questions, feel free to contact us, and we will do our best to assist you!